function submitPost(){
	var postContent = $("#postContent").val();
	var postTopic = $("#postTopic").val();
	$.post(ctx+"/forum/post/postPost", {postContent: postContent, postTopic:postTopic},
		function(result){
			if(isSuccess(result.code)){
				alert("添加成功");
			}else{
				aleret("添加失败");
			}
	});
}